CN116694217A - Solar catalysis self-cleaning paint and preparation and application methods thereof - Google Patents

Solar catalysis self-cleaning paint and preparation and application methods thereof Download PDF

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Publication number
CN116694217A
CN116694217A CN202310805588.7A CN202310805588A CN116694217A CN 116694217 A CN116694217 A CN 116694217A CN 202310805588 A CN202310805588 A CN 202310805588A CN 116694217 A CN116694217 A CN 116694217A
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tio
nano
sio
hydrosol
self
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Inventor
刘伟龙
梁庆松
王靖
曹宇奇
张发荣
刘炳光
李建生
赵金洋
武东蕾
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Tianjin Vocational Institute
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Tianjin Vocational Institute
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04—Polyurethanes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2203/00—Other substrates
    • B05D2203/30—Other inorganic substrates, e.g. ceramics, silicon
    • B05D2203/35—Glass
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2237—Oxides; Hydroxides of metals of titanium
    • C08K2003/2241—Titanium dioxide
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Catalysts (AREA)

Abstract

The invention relates to a solar catalytic self-cleaning paint, a preparation method and an application method thereof, which consists of waterborne polyurethane and nano SiO 2 Hydrosol, nano TiO 2 Hydrosol, nb 2 O 5 Precursor, ammonium sulfate and deionized water. Nano SiO in paint 2 Nano TiO 2 And nano Nb 2 O 5 The oxide acts as both the photocatalytic component of the coated substrate and the antireflective component of the coated substrate. Waterborne polyurethane and nano SiO 2 As film forming agents or film forming aids, are stable in acidic aqueous solutions. The chemical composition of the self-cleaning antireflection film of the composite oxide in the invention is SO 4 2‑ /SiO 2 ‑TiO 2 ‑Nb 2 O 5 The light transmittance is 93.6 to 94.6 percent, and the anti-reflection rate is 2 to 3 percentThe method comprises the steps of carrying out a first treatment on the surface of the Hardness is 5-6H; the water contact angle is 4-8 degrees. In the invention, nano SiO is treated by 2 ‑TiO 2 ‑Nb 2 O 5 The composite oxide is subjected to in-situ sulfation, so that the sunlight catalytic activity of the formed photocatalytic film is improved by times, the antireflection performance of the coated glass is not adversely affected, and the method has industrial application prospect.

Description

Solar catalysis self-cleaning paint and preparation and application methods thereof
Technical Field
The invention relates to a solar catalytic self-cleaning coating and a preparation and application method thereof, belonging to the technical field of new materials.
Background
The energy crisis and environmental pollution are two major problems faced by human beings in the present age, and the solar catalysis method can effectively degrade organic pollutants and becomes an important way for solving the energy and environmental problems. The solar energy utilization rate is improved, and the design of a sunlight catalyst is a technical key.
Anatase nano TiO 2 Is the photocatalytic material with highest photocatalytic efficiency, the refractive index is 2.55, and the single-layer TiO is adopted 2 The maximum light transmittance of the coated glass is 89%. Commercial application has found nano TiO after many years 2 The main disadvantages are: (1) no visible light-induced luminescence catalytic effect; (2) Photocatalytic degradation of matrix organic materials requires coating treatment; (3) unsatisfactory and unstable photocatalytic performance; (4) high refractive index and high light reflectivity.
For example, street guardrails require periodic paint make-up, mainly because titanium dioxide or self-cleaning components in the paint absorb sunlight and pulverize the paint matrix. In use of the solar cell or the solar collector, the glass cover plate is gradually covered by dust and organic pollutants, so that the light transmittance of the glass is reduced, and the power generation or heat absorption efficiency is reduced by 10% -30%. The photocatalysis self-cleaning paint is a simple and easy measure for preventing the pollution of the hard surface.
To solve the problem of nano TiO 2 The problem of photocatalytic degradation of organic matrix materials is generally solved by using nano SiO 2 The coated material is added into a coating as a photocatalytic material. To solve the problem of nano TiO 2 The difficulty of high refractive index, south glass company invention patent (CN 109665719B, 22-05-24) discloses the reduction of TiO by 2 The doping amount of the glass fiber reinforced plastic material solves the problem that the light transmittance is inconsistent with the self-cleaning effect. The invention patent (CN 109651863B, 2021-06-01) discloses that nano hollow titanium dioxide particles are introduced to prepare the solar anti-reflection coating with self-cleaning and anti-reflection functions.
Literature reports nanometer TiO 2 Sulfation can improve the photocatalytic performance by 2-10 times, if the sulfated TiO is selected 2 Replace common nano TiO 2 The solar glass can be self-cleaned with low dosage, thereby reducing the adverse effect on the anti-reflection performance of the glass. Nanometer TiO 2 Only ultraviolet light is absorbed, and if the ultraviolet light is modified to absorb visible light to generate a photocatalysis effect, the photocatalysis efficiency is greatly improved.
Niobium oxide is a typical N-type semiconductor with a bandgap of 3.4-4.0eV, and TiO 2 The band gap width is 3.2eV equivalent, has the advantages of acid and alkali resistance and light corrosion resistance, and is superior to TiO 2 Has great photocatalytic potential. Niobium oxide is a generic term for niobium oxides of different valence states, commonly Nb 2 O 5 The refractive index is 1.7-2.1, and the single layer Nb 2 O 5 The light transmittance of the coated glass is 94%, and the coated glass can replace nano TiO 2 As a photocatalysis material and a glass anti-reflection material, the photocatalysis principle of the material is equal to that of nano TiO 2 The photocatalysis principle is similar, and organic pollutants are degraded into carbon dioxide and water through photo-generated hydroxyl radical oxidation.
Chinese patent (CN 112371105A, 2021-02-19) discloses a niobium pentoxide/titanium dioxide composite photocatalyst, and a preparation method and application thereof, and the prepared Nb 2 O 5 -TiO 2 The forbidden bandwidth of the composite photocatalyst is 2.07-2.45 eV, and the composite photocatalyst can be used as a photocatalyst in the field of nitric oxide purification. Nb (Nb) 2 O 5 -TiO 2 The composite oxide can absorb visible light, has higher photocatalytic activity, and can overcome nano TiO (titanium dioxide) 2 Is insufficient in terms of (a).
Disclosure of Invention
The invention aims to provide a solar catalysis self-cleaning coating which is prepared from waterborne polyurethane and nano SiO 2 Hydrosol, nano TiO 2 Hydrosol, nano Nb 2 O 5 The preparation method comprises the following components in percentage by mass:
nano SiO in paint 2 Nano TiO 2 And nano Nb 2 O 5 The oxide is used as a photocatalysis component of the coating matrix and an antireflection component of the coating matrix; the aqueous polyurethane is used as a film forming agent or a film forming auxiliary agent and is stable in an acidic aqueous solution; oxalic acid as nano TiO 2 And nano Nb 2 O 5 Is used for promoting the nanometer TiO 2 And nano Nb 2 O 5 Dissolving; ammonium sulfate is used as sulfating agent of composite oxide, and the solar catalytic performance of the composite oxide can be improved after high-temperature treatment.
The aqueous polyurethane resin is a uniform emulsion formed by dispersing polyurethane in water, has the advantages of incombustibility, small smell, no pollution to environment, energy conservation, convenient operation and processing and the like, and is widely used as an adhesive and a coating. The polyurethane aqueous solution (particle size <1nm, transparent appearance), polyurethane aqueous dispersion (particle size=1-100 nm, semitransparent appearance) and polyurethane emulsion (particle size >100nm, white turbidity appearance) can be classified according to particle size and appearance. Depending on the diisocyanate selected, it can be classified into aromatic polyurethane and aliphatic polyurethane. One-component polyurethanes and two-component polyurethanes can be distinguished in the form of product packages. The synthesis process of the waterborne polyurethane can be divided into two stages, wherein the first stage is preliminary polymerization, and the oligomer diol, the chain extender, the waterborne monomer and the diisocyanate are gradually polymerized through a solution to generate a waterborne polyurethane prepolymer with the molecular weight of 1000 orders; the second stage is the dispersion of the prepolymer in water after neutralization.
The invention further aims to provide a preparation method of the solar catalysis self-cleaning paint, which comprises 5 parts of acidic polyurethane aqueous solution preparation, acidic nano SiO2 hydrosol preparation, nano TiO2 hydrosol preparation, composite photocatalyst preparation and photocatalytic self-cleaning paint preparation, and specifically comprises the following steps:
(1) Diluting a commercial aqueous polyurethane solution with the mass concentration of 40% -50% by using deionized water, and adjusting the pH value of the polyurethane aqueous solution to be 2-3 by using a saturated oxalic acid aqueous solution to obtain an aqueous polyurethane solution with the mass concentration of 5%; the aqueous polyurethane is a commercial aromatic and aliphatic single-component polyurethane aqueous solution or emulsion, and the molecular weight of the polymer is 2000-10000;
(2) Basic SiO with the mass concentration of 30-40% in the market 2 Diluting the hydrosol with deionized water, and regulating pH of the hydrosol with saturated oxalic acid aqueous solution to be 2-3 to obtain acidic SiO with mass concentration of 10% and particle diameter of 10-50nm 2 A hydrosol;
(3) Dissolving titanyl sulfate in dilute sulfuric acid aqueous solution, neutralizing with ammonia water to pH=8-10 to form hydrated TiO 2 White precipitation; dispersing the white precipitate in saturated oxalic acid aqueous solution, and controlling TiO 2 The molar ratio of oxalic acid to oxalic acid is 1:0.6-1, heating and peptizing in water bath at 60-80deg.C to obtain nanometer TiO with mass concentration of 5% 2 A hydrosol;
(4) Acid nano SiO with mass concentration of 10% 2 Hydrosol and nano TiO with mass concentration of 5% 2 Hydrosol and niobium oxalate water solution with mass concentration of 5 percent, wherein the mass ratio is SiO 2 ：TiO 2 ：Nb 2 O 5 =1: 0.01-0.05:0.02-0.1, nano TiO 2 -Nb 2 O 5 Is coated with nano SiO 2 Coating to form nano SiO 2 -TiO 2 -Nb 2 O 5 Composite photocatalyst hydrosol;
(5) Adding aqueous polyurethane solution with mass concentration of 5% into the mixture, and controlling the aqueous polyurethane and nano SiO 2 The feeding mass ratio of (2) is 0.2-1:1, adding deionized water to adjust nano SiO 2 The mass concentration is 5%, according to the mol ratio (Ti+Nb): s=1: and 0.2-1 of ammonium sulfate to obtain the photocatalysis self-cleaning coating.
The coating is suitable for coating inner and outer walls of buildings, stone decoration, road isolation guardrails, outdoor billboards, glassware and solar cell glass photocatalysis self-cleaning.
For photocatalytic self-cleaning coating applications with polyurethane as the primary film-forming component, there is a need to augment both aqueous polyurethane and nano-TiO 2 -Nb 2 O 5 The proportion in the paint. Since the nano SiO is not subjected to the heat treatment process 2 The adhesion of the polyurethane to the solid surface is relatively low. Nanometer TiO 2 -Nb 2 O 5 The photo-catalytic activity of the catalyst is lower, and the self-cleaning effect of the photo-catalytic can be achieved only by increasing the addition amount.
In addition, the curing process of the acidic polyurethane coating is longer, and the compounding of various nano oxides is slowly carried out, so that niobium oxalate is converted into Nb 2 O 5 With TiO 2 Compounding into TiO 2 -Nb 2 O 5 A solar catalyst; is coated with nano SiO 2 The coated sunlight catalyst can not degrade polyurethane matrix materials by photocatalysis, only degrades surface organic pollutants, and can prolong the service life of the coating.
For SiO in nanometer 2 The polyurethane is only an auxiliary film former for photocatalytic self-cleaning coating applications as the primary film-forming component. The aqueous polyurethane has certain elasticity, improves the leveling property of the film layer after being compounded with the silica sol, and overcomes the defects of nano SiO 2 Film stress cracking disadvantages of gel films during drying. The film layer is subjected to heat treatment, wherein organic components are almost completely thermally decomposed, and photocatalytic components in the film layer are rapidly compounded, so that the solar catalytic performance is greatly enhanced.
The invention further aims to provide an application method of the solar catalysis self-cleaning coating, which comprises the steps of preparing a composite oxide sol-gel film and preparing a composite oxide self-cleaning antireflection film in a part 2, wherein the specific steps are as follows:
(1) Coating the photocatalysis self-cleaning paint on the surface of the solar cell glass, wherein the thickness of a wet film is 1500-3000nm; drying at 150-200deg.C, and thermally decomposing organic matters in the film layer to form a nano SiO2-TiO2-Nb2O5 composite oxide gel film, wherein the thickness of the xerogel film is 100-200nm;
(2) Heat-treating solar cell coated glass with a single-sided nano SiO2-TiO2-Nb2O5 composite oxide gel film for 0.2-1h at 600-700 ℃, sintering on the solar cell coated glass, rapidly cooling by air and water to room temperature, SO that the solar cell coated glass is toughened, the impact resistance strength of the solar cell coated glass is improved, a self-cleaning antireflection film of SO42-/SiO2-TiO2-Nb2O5 composite oxide is formed on the solar cell glass, the light transmittance of the coated glass is 93.6-94.6%, and the antireflection rate is 2-3%; hardness is 5-6H; the water contact angle is 4-8 degrees.
In nano SiO 2 During high temperature sintering of (2), the polyurethane film is degraded into CO 2 And nitrogen volatilization, siO in gel film layer 2 -TiO 2 -Nb 2 O 5 Inter-diffusing, penetrating and doping at high temperature to form a composite oxide film layer; the sulfuric acid generated by the thermal decomposition of the mixed ammonium sulfate is doped into the composite oxide to form the chemical composition of SO 4 2- /SiO 2 -TiO 2 -Nb 2 O 5 A self-cleaning antireflection film of the composite oxide;
the invention has the following beneficial effects:
(1) Nb in the invention 2 O 5 TiO with photocatalytic properties and high activity 2 The composite material can efficiently absorb visible light and further has high specific surface area with SiO 2 Compounding to form nano SiO 2 -TiO 2 -Nb 2 O 5 The composite oxide has higher photocatalytic activity;
(2) In the invention, nano SiO is treated by 2 -TiO 2 -Nb 2 O 5 The composite oxide is sulfated in-situ, so that the sunlight catalytic activity of the formed photocatalytic film is improved by times;
(3) SO in the present invention 4 2- /SiO 2 -TiO 2 -Nb 2 O 5 The photocatalysis self-cleaning material has no adverse effect on the antireflection performance of the coated glass, and has industrial application prospect.
The raw materials adopted in the invention, namely the waterborne polyurethane, the alkaline silicon dioxide, the titanyl sulfate, the oxalic acid, the niobium oxalate, the ammonia water, the oleic acid, the hexane, the methylene blue, the ammonium sulfate and the like are all commercial chemical reagents.
Detailed Description
Example 1
10g of a commercially available aqueous polyurethane solution with a mass concentration of 40% was diluted with deionized water, and the ph=2-3 of the aqueous polyurethane solution was adjusted with a saturated oxalic acid aqueous solution to obtain 80g of a 5% mass concentration aqueous polyurethane solution, and the polymer molecular weight was 4000. Basic SiO with 40% mass concentration on the market 2 100g of hydrosol, diluting with deionized water, and regulating pH to be 2-3 with saturated oxalic acid aqueous solution to obtain acidic SiO with mass concentration of 10% and particle size of 10-50nm 2 400g of hydrosol. Titanyl sulfate 8g was dissolved in a dilute aqueous sulfuric acid solution and neutralized with aqueous ammonia to ph=8-10 to form hydrated TiO 2 White precipitation; dispersing the white precipitate in saturated oxalic acid aqueous solution, heating in water bath at 60-80deg.C for peptizing to obtain nanometer TiO with mass concentration of 5% 2 20g of hydrosol. Acid nano SiO with mass concentration of 10% 2 400g of hydrosol and 5% mass concentration nano TiO 2 Mixing 20g of hydrosol and 20g of niobium oxalate aqueous solution with mass concentration of 5%, and nano TiO 2 -Nb 2 O 5 Is coated with nano SiO 2 Coating to form nano SiO 2 -TiO 2 -Nb 2 O 5 440g of composite photocatalyst hydrosol. 80g of aqueous polyurethane solution with the mass concentration of 5% is added into the paint, 280g of deionized water is added into the paint, and nano SiO in the paint is adjusted 2 The mass concentration is 5%, and then 13.2g of ammonium sulfate is added to obtain 730g of the solar catalytic self-cleaning paint.
Example two
The solar catalysis self-cleaning paint prepared in the example 1 is coated on the surface of solar cell glass, and the thickness of a wet film is 1500-3000nm; drying at 150-200deg.C for 0.5h, and thermally decomposing organic matters in the film layer to form nanometer SiO 2 -TiO 2 -Nb 2 O 5 The film thickness of the composite oxide gel film is 100-200nm. Covering one side with nano SiO 2 -TiO 2 -Nb 2 O 5 Solar cell coated glass of composite oxide gel filmHeat treatment is carried out for 1h at 600-700 ℃, the glass is sintered on solar glass, and the glass is cooled to room temperature by rapid air cooling and water washing, SO that the coated glass of the solar cell is tempered, the impact strength of the coated glass is improved, and SO is formed on the glass of the solar cell 4 2- /SiO 2 -TiO 2 -Nb 2 O 5 The self-cleaning anti-reflection film of the composite oxide has the light transmittance of 94.6 percent and the anti-reflection rate of 3 percent; hardness 6H; the water contact angle was 4 °.

Claims (3)

1. A solar catalytic self-cleaning paint is characterized by comprising waterborne polyurethane and nano SiO 2 Hydrosol, nano TiO 2 Hydrosol, nb 2 O 5 The preparation method comprises the following components in percentage by mass:
2. a preparation method of a solar catalytic self-cleaning coating is characterized by comprising the steps of preparing an acidic polyurethane aqueous solution and preparing acidic nano SiO 2 Preparation of hydrosol and nano TiO 2 The preparation method comprises the following steps of preparing hydrosol, preparing a composite photocatalyst and preparing a photocatalytic self-cleaning coating, wherein the specific steps are as follows:
(1) Diluting a commercial aqueous polyurethane solution with the mass concentration of 40% -50% by using deionized water, and adjusting the pH value of the polyurethane aqueous solution to be 2-3 by using a saturated oxalic acid aqueous solution to obtain an aqueous polyurethane solution with the mass concentration of 5%; the aqueous polyurethane is a commercial aromatic and aliphatic single-component polyurethane aqueous solution or emulsion, and the molecular weight of the polymer is 2000-10000;
(2) Basic SiO with the mass concentration of 30-40% in the market 2 Diluting the hydrosol with deionized water, and regulating pH of the hydrosol with saturated oxalic acid aqueous solution to be 2-3 to obtain acidic SiO with mass concentration of 10% and particle diameter of 10-50nm 2 A hydrosol;
(3) Dissolving titanyl sulfate in dilute sulfuric acid aqueous solution, and adding ammonia waterAnd to ph=8-10, forming hydrated TiO 2 White precipitation; dispersing the white precipitate in saturated oxalic acid aqueous solution, and controlling TiO 2 The molar ratio of oxalic acid to oxalic acid is 1:0.6-1, heating and peptizing in water bath at 60-80deg.C to obtain nanometer TiO with mass concentration of 5% 2 A hydrosol;
(4) Acid nano SiO with mass concentration of 10% 2 Hydrosol and nano TiO with mass concentration of 5% 2 Hydrosol and niobium oxalate water solution with mass concentration of 5 percent, wherein the mass ratio is SiO 2 ：TiO 2 ：Nb 2 O 5 =1: 0.01-0.05:0.02-0.1, nano TiO 2 -Nb 2 O 5 Is coated with nano SiO 2 Coating to form nano SiO 2 -TiO 2 -Nb 2 O 5 Composite photocatalyst hydrosol;
(5) Adding aqueous polyurethane solution with mass concentration of 5% into the mixture, and controlling the aqueous polyurethane and nano SiO 2 The feeding mass ratio of (2) is 0.2-1:1, adding deionized water to adjust nano SiO 2 The mass concentration is 5%, according to the mol ratio (Ti+Nb): s=1: and 0.2-1 of ammonium sulfate to obtain the photocatalysis self-cleaning coating.
3. The application method of the solar catalytic self-cleaning coating is characterized by comprising 2 parts of preparation of a composite oxide sol-gel film and preparation of a composite oxide self-cleaning antireflection film, and comprises the following specific steps:
(1) Coating the photocatalysis self-cleaning paint on the surface of the solar cell glass, wherein the thickness of a wet film is 1500-3000nm; drying at 150-200deg.C, and thermally decomposing organic matters in the film layer to form nanometer SiO 2 -TiO 2 -Nb 2 O 5 A composite oxide gel film, the thickness of the xerogel film is 100-200nm;
(2) Covering one side with nano SiO 2 -TiO 2 -Nb 2 O 5 The solar cell coated glass of the composite oxide gel film is subjected to heat treatment for 0.2 to 1 hour at 600 to 700 ℃, sintered on the solar glass, rapidly cooled by air and washed by water to be cooled to room temperature, so that the solar cell coated glass is tempered, the impact resistance is improved, and the composite oxide gel film is prepared by using the composite oxide gel filmSO formation on battery glass 4 2- /SiO 2 -TiO 2 -Nb 2 O 5 The self-cleaning anti-reflection film of the composite oxide has the light transmittance of 93.6-94.6% and the anti-reflection rate of 2-3%; hardness is 5-6H; the water contact angle is 4-8 degrees.
CN202310805588.7A 2023-07-03 2023-07-03 Solar catalysis self-cleaning paint and preparation and application methods thereof Pending CN116694217A (en)

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Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09291227A (en) * 1996-02-26 1997-11-11 Ito Kogaku Kogyo Kk Primer coating material for optical element
CN1224036A (en) * 1998-10-30 1999-07-28 中国科学院感光化学研究所 Titanium sol-gel paint adding nm inorganic compound particles, method for preparing same and use thereof
JP2000109343A (en) * 1998-10-01 2000-04-18 Toyota Central Res & Dev Lab Inc Photocatalysis composition and its production
CN1717457A (en) * 2002-02-04 2006-01-04 旭化成株式会社 Antifouling water-based coating composition
US20070077406A1 (en) * 2005-09-30 2007-04-05 Jacobs Jeffry L Photocatalytic coating
US20070218095A1 (en) * 2006-03-14 2007-09-20 3M Innovative Properties Company Photocatalytic substrate with biocidal coating
JP2008040171A (en) * 2006-08-07 2008-02-21 Pentax Corp Optical element with antireflection film having self-cleaning effect and method for manufacturing the same
DE102008006785B3 (en) * 2008-01-30 2009-06-10 Schott Ag Process for producing a smear-resistant antireflection coating on a borosilicate glass body and use of the coated glass body for producing lamp bulbs of discharge lamps
JP2010260753A (en) * 2009-05-01 2010-11-18 Ohara Inc Glass ceramic composite material and method for manufacturing the same
WO2015133316A1 (en) * 2014-03-03 2015-09-11 株式会社鯤コーポレーション Photocatalyst coating liquid and photocatalyst film using same
CN105209554A (en) * 2013-03-15 2015-12-30 贝洱工艺公司 Superhydrophilic coating composition
CN109665719A (en) * 2018-11-30 2019-04-23 东莞南玻太阳能玻璃有限公司 A kind of high anti-reflection coating solution of automatically cleaning and preparation method thereof and the high anti-reflection solar energy glass of automatically cleaning
CN112371105A (en) * 2020-11-26 2021-02-19 陕西科技大学 Niobium pentoxide/titanium dioxide composite photocatalyst and preparation method and application thereof
CN113703077A (en) * 2017-04-12 2021-11-26 富士胶片株式会社 Antireflection film and optical member
CN114196241A (en) * 2022-01-12 2022-03-18 天津市职业大学 Photocatalytic self-cleaning coating and preparation method and application thereof
CN114249351A (en) * 2020-09-21 2022-03-29 中国科学院大连化学物理研究所 Tetragonal niobium pentoxide material and synthesis and application thereof

Patent Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09291227A (en) * 1996-02-26 1997-11-11 Ito Kogaku Kogyo Kk Primer coating material for optical element
JP2000109343A (en) * 1998-10-01 2000-04-18 Toyota Central Res & Dev Lab Inc Photocatalysis composition and its production
CN1224036A (en) * 1998-10-30 1999-07-28 中国科学院感光化学研究所 Titanium sol-gel paint adding nm inorganic compound particles, method for preparing same and use thereof
CN1717457A (en) * 2002-02-04 2006-01-04 旭化成株式会社 Antifouling water-based coating composition
US20070077406A1 (en) * 2005-09-30 2007-04-05 Jacobs Jeffry L Photocatalytic coating
US20070218095A1 (en) * 2006-03-14 2007-09-20 3M Innovative Properties Company Photocatalytic substrate with biocidal coating
JP2008040171A (en) * 2006-08-07 2008-02-21 Pentax Corp Optical element with antireflection film having self-cleaning effect and method for manufacturing the same
DE102008006785B3 (en) * 2008-01-30 2009-06-10 Schott Ag Process for producing a smear-resistant antireflection coating on a borosilicate glass body and use of the coated glass body for producing lamp bulbs of discharge lamps
JP2010260753A (en) * 2009-05-01 2010-11-18 Ohara Inc Glass ceramic composite material and method for manufacturing the same
CN105209554A (en) * 2013-03-15 2015-12-30 贝洱工艺公司 Superhydrophilic coating composition
WO2015133316A1 (en) * 2014-03-03 2015-09-11 株式会社鯤コーポレーション Photocatalyst coating liquid and photocatalyst film using same
CN113703077A (en) * 2017-04-12 2021-11-26 富士胶片株式会社 Antireflection film and optical member
CN109665719A (en) * 2018-11-30 2019-04-23 东莞南玻太阳能玻璃有限公司 A kind of high anti-reflection coating solution of automatically cleaning and preparation method thereof and the high anti-reflection solar energy glass of automatically cleaning
CN114249351A (en) * 2020-09-21 2022-03-29 中国科学院大连化学物理研究所 Tetragonal niobium pentoxide material and synthesis and application thereof
CN112371105A (en) * 2020-11-26 2021-02-19 陕西科技大学 Niobium pentoxide/titanium dioxide composite photocatalyst and preparation method and application thereof
CN114196241A (en) * 2022-01-12 2022-03-18 天津市职业大学 Photocatalytic self-cleaning coating and preparation method and application thereof

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
DA SLIVA等: "Photocatalytic Nb2O5-doped TiO2 nanopaticales for glazed cceramic tiles", 《CERAMICS INTERNATIONAL》, vol. 42, no. 4, 31 March 2016 (2016-03-31), pages 5113 - 5122 *
孙清;刘兰香;邢晓玲;ALINE AUROUX;沈俭一;: "铌的催化作用", 石油化工, no. 04, 15 April 2007 (2007-04-15), pages 319 - 327 *
张发荣: ""光催化技术在新污染物废水中的应用"", 《中国高新科技》, no. 20, 25 October 2023 (2023-10-25), pages 87 - 89 *

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